[pkg-wpa-devel] Bug#526693: BUG: soft lockup - CPU#0 stuck for 61s (wpa_supplicant + jfs)

[legolas558]

Package: wpasupplicant
Version: 0.6.9-2

I get often freezes during shutdown; collecting many clues (stale files 
when booting after incorrectly terminated shutdown, screen output etc) I 
have been able to verify that this is what happens:

1) unmounting of my root JFS partition fails, in particular my /etc/mtab 
file is not unlinked correctly
2) some kernel error dump is shown on screen for less than a second
3) the computer is shutdown anyway, without leaving track of the error 
(logger is anyway gone when this happens, and there is too little time 
to read on screen)

I know that I should plug a serial connection to get the full output; 
however today it did not shutdown totally and kept hanging forever 
spitting out a specific error dump every 61s. I have wrote down these 
details:

-------
BUG: soft lockup - CPU#0 stuck for 61s!
wpa_supplicant Tainted G    D    (2.6.28-681 #1) Pro 7000X

_spin_lock
txBegin
security_inode_permission
__link_path_walk
get_UCSname
do_notify_resume
jfs_unlink
do_unlinkat
mntput_no_expire
filp_close
sys_close
sysenter_do_call
-------

--
   Daniele C.